Looks like Doodle wins! I'm annoyed it forces me to connect my calendar since all I actually need is the time chooser bits, but it does work like I want it to!
I do like calendly but it's overkill for this since it requires setting up a meeting type or giving someone full reign over choosing any open slot in my calendar
and to be clear, I explicitly do not want a full on scheduling system like @Calendly for this (which I do use and enjoy, but this is a different use case)
Teleprompters are cool, but add a lot of bulk to the setup. Plus good ones aren't cheap. You can also just train yourself to look at the camera when talking to people instead of looking at the screen.
Yeah this is why I don't use software encoding. If you have an external device like the ATEM Mini you can add an overlay there and your computer sees it as just a webcam